E-ISSN 2277-338X | ISSN 2320-4664
 

Original Research 


Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.

Sangappa Virupaxappa Kashinakunti, Manjula Rangappa, Gurupadappa Shantappa Kallaganada, Kavita Hiremath.

Abstract
Background: Pregnancy is a complex endocrine-metabolic adaptation and diabetogenic condition involving impaired
cellular insulin sensitivity, increased β-cell function, and moderate elevation of blood glucose level. The threshold for a
positive glucose challenge test (GCT) necessitating further diagnostic testing remains controversial in gestational
diabetes mellitus (GDM).

Aims & Objective: To find the association of risk factors with GDM, to evaluate the diagnostic value of GCT as
compared to oral glucose tolerance test (OGTT) in GDM, and also to determine the optimal cut-off value of GCT with
best sensitivity and specificity for the prediction of GDM and also to find the association of GCT between FBS and 2nd
hour OGTT glucose level.

Material and Methods: The study was conducted at Hanagal Shri Kumareshwara Hospital, Bagalkot, Karnataka, India,
from June 2009 to February 2010. 247 pregnant women were selected for the study. Selected women were subjected to
screening by GCT. If the blood glucose level was greater than 140 mg/dl, the GCT was considered as positive and these
patients were subjected to 75 gm OGTT to confirm the diagnosis of GDM. The diagnosis of GDM was based on WHO
criteria.

Results: In the present study out of 247 pregnant women selected, 199 women participated, of which 26(13.06%) of
the pregnant women were diagnosed to have GDM. Mean age of the study subjects was 24.7±3.51 years. There was a
positive association of GDM with age, BMI, glucosuria, polyhydraromnios, obstetrics score, previous GDM, past history
of unexplained IUD, family history of DM, recurrent vaginal infection. Area under the curve is 0.994 (p>0.0001) which
has best diagnostic accuracy at glucose level of 128 mg/dl, as the best cut off value. Second hour OGTT is more
correlated with GCT than FBS.

Conclusion: In this ethnic group, the high risk pregnant women for GDM should undergo initial 50 gm. GCT. If GCT
value is more than 128 mg/dl, it should be followed by second hour 75 gram OGTT, for the diagnosis of GDM and it
reduces the FBS estimation of blood sugar level and an extra prick too.

Key words: Gestational diabetes mellitus, Glucose challenge test, Glucose tolerance test.


 
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How to Cite this Article
Pubmed Style

Sangappa Virupaxappa Kashinakunti , Manjula Rangappa , Gurupadappa Shantappa Kallaganada, Kavita Hiremath. Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.. Int J Med Sci Public Health. 2013; 2(4): 829-835. doi:10.5455/ijmsph.2013.190620133


Web Style

Sangappa Virupaxappa Kashinakunti , Manjula Rangappa , Gurupadappa Shantappa Kallaganada, Kavita Hiremath. Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.. https://www.ijmsph.com/?mno=37470 [Access: April 05, 2022]. doi:10.5455/ijmsph.2013.190620133


AMA (American Medical Association) Style

Sangappa Virupaxappa Kashinakunti , Manjula Rangappa , Gurupadappa Shantappa Kallaganada, Kavita Hiremath. Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.. Int J Med Sci Public Health. 2013; 2(4): 829-835. doi:10.5455/ijmsph.2013.190620133



Vancouver/ICMJE Style

Sangappa Virupaxappa Kashinakunti , Manjula Rangappa , Gurupadappa Shantappa Kallaganada, Kavita Hiremath. Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.. Int J Med Sci Public Health. (2013), [cited April 05, 2022]; 2(4): 829-835. doi:10.5455/ijmsph.2013.190620133



Harvard Style

Sangappa Virupaxappa Kashinakunti , Manjula Rangappa , Gurupadappa Shantappa Kallaganada, Kavita Hiremath (2013) Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.. Int J Med Sci Public Health, 2 (4), 829-835. doi:10.5455/ijmsph.2013.190620133



Turabian Style

Sangappa Virupaxappa Kashinakunti , Manjula Rangappa , Gurupadappa Shantappa Kallaganada, Kavita Hiremath. 2013. Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.. International Journal of Medical Science and Public Health, 2 (4), 829-835. doi:10.5455/ijmsph.2013.190620133



Chicago Style

Sangappa Virupaxappa Kashinakunti , Manjula Rangappa , Gurupadappa Shantappa Kallaganada, Kavita Hiremath. "Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.." International Journal of Medical Science and Public Health 2 (2013), 829-835. doi:10.5455/ijmsph.2013.190620133



MLA (The Modern Language Association) Style

Sangappa Virupaxappa Kashinakunti , Manjula Rangappa , Gurupadappa Shantappa Kallaganada, Kavita Hiremath. "Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.." International Journal of Medical Science and Public Health 2.4 (2013), 829-835. Print. doi:10.5455/ijmsph.2013.190620133



APA (American Psychological Association) Style

Sangappa Virupaxappa Kashinakunti , Manjula Rangappa , Gurupadappa Shantappa Kallaganada, Kavita Hiremath (2013) Comparative study of 50 gram glucose challenge test and 75 gram oral glucose tolerance test in diagnosis of gestational diabetes mellitus in high risk group.. International Journal of Medical Science and Public Health, 2 (4), 829-835. doi:10.5455/ijmsph.2013.190620133





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